Supporting Information

Metal–organic frameworks: A new promising class of material for high

performance supercapacitor electrode

Jie Yang,a,b Peixun Xiong, a,b Cheng Zheng, a,b Heyuan Qiu, a,b and Mingdeng Wei a,b

a State Key Laboratory of Photocatalysis on Energy and Environmet, Fuzhou University, Fuzhou, Fujian 350002, Chinab Institute of Advanced Energy Materials, Fuzhou University, Fuzhou, Fujian 350002, China

*Corresponding author: Mingdeng Wei

Tel./fax: +86-591-83753180

E-mail address: wei-mingdeng@fzu.edu.cn

0 5 10 150

5

10

15

before after

-Z''/

Z'/

Fig. S1 EIS plots of Ni-MOF-24 before and after the cycling.

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A.This journal is © The Royal Society of Chemistry 2014

5 1/nm5 1/nm

1

2

3

4

5(100)

5 1/nm5 1/nm

1

2

3

5

(12-1)_ (01-1)<101>

<01-1>

(3-11)

(a)

(b)

Fig. S2 SAED patterns for the Ni-MOF materials: (a) Ni-MOF-12 and (b) Ni-MOF-24.

3600 3000 2400 1800 1200 60060

70

80

90

100

110

120

%

Tran

cem

ittan

ce (a

rb.u

nits

)

Wavenumber ( cm-1)885 880 875 870 865 860 855 850

Rela

tive c

ount

s ( s

)

Binding energy ( eV )

0 100 200 300 400 500 600 700-70

-60

-50

-40

-30

-20

-10

0

10

Weig

ht (%

)

Temperature(℃)

Ni2

p 1/2

(s)

Ni2

p 1/2

Ni2

p 3/2

(s)

Ni2

p 3/2

1508

3596

3435 3350 30

66

1582

1390

(a)

(b) (c)

Fig. S3 Characterization results of Ni-MOF-12 material: (a) TG-DTA curve, (b) XPS, and (c) IR spectrum.

0.0 0.2 0.4 0.6 0.8 1.0-5

0

5

10

15

20

25

30

Volu

me a

bsor

ded(

cm3 /g

)

Relative Pressure ( P/P0)

0 10 20 30 40 50 600.000.010.020.030.040.05

dV/d

W (c

m3 n

m-1g-1

)

pore width (nm)

0.0 0.2 0.4 0.6 0.8 1.0-5

0

5

10

15

20

25

30

Volu

me a

bsor

ded(

cm3 /g

)

Relative Pressure ( P/P0)

0 10 20 30 40 50 600.0000.0050.0100.0150.0200.0250.030

dV/d

W (c

m3 n

m-1g-1

)

pore width (nm)

(a)

(b)

Fig. S4 N2 adsorption-desorption isotherms and the pore size distribution curves for the Ni-MOF

materials: (a) Ni-MOF-12 and (b) Ni-MOF-24.

Fig. S5 Space filling mode of Ni-MOF-12 on (020) plane.

5 10 15 20 25 30

before after

2 Theta ( degree )

Fig. S6 XRD patterns of Ni-MOF-24 before and after the alkali treatment.